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| author | Stéphane Lesimple <speed47_github@speed47.net> | 2018-01-07 18:13:25 +0100 |
|---|---|---|
| committer | Stéphane Lesimple <speed47_github@speed47.net> | 2018-01-07 18:13:25 +0100 |
| commit | 8c2fd0f0bba6f44defb1c52c73addc74b2ac15a2 (patch) | |
| tree | 9fa48d1c448a2edcc7d602558a1f687d0014ebe0 | |
| parent | 761c2b80e4ff045121b4406a8c6295eccf57e51d (diff) | |
| download | spectre-meltdown-checker-8c2fd0f0bba6f44defb1c52c73addc74b2ac15a2.tar.lz spectre-meltdown-checker-8c2fd0f0bba6f44defb1c52c73addc74b2ac15a2.tar.xz spectre-meltdown-checker-8c2fd0f0bba6f44defb1c52c73addc74b2ac15a2.zip | |
fix MSR reading, need rdmsr for now
| -rwxr-xr-x | spectre-meltdown-checker.sh | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/spectre-meltdown-checker.sh b/spectre-meltdown-checker.sh index d138bd2..249d986 100755 --- a/spectre-meltdown-checker.sh +++ b/spectre-meltdown-checker.sh @@ -1,7 +1,7 @@ #! /bin/sh # Spectre & Meltdown checker # Stephane Lesimple -VERSION=0.04 +VERSION=0.05 pstatus() { @@ -116,14 +116,23 @@ fi if [ ! -e /dev/cpu/0/msr ]; then pstatus yellow UNKNOWN "couldn't read /dev/cpu/0/msr, is msr support enabled in your kernel?" else - dd if=/dev/cpu/0/msr of=/dev/null bs=1 count=8 skip=72 2>/dev/null - if [ $? -eq 0 ]; then - pstatus green YES + if which rdmsr >/dev/null 2>&1; then + rdmsr 0x48 >/dev/null 2>&1 + if [ $? -eq 0 ]; then + pstatus green YES + else + pstatus red NO + fi else - pstatus red NO + pstatus yellow UNKNOWN "missing 'rdmsr' tool, please install it, usually it's in the msr-tools package" + # doesn't work: + #dd if=/dev/cpu/0/msr of=/dev/null bs=1 count=8 skip=72 2>/dev/null + #if [ $? -eq 0 ]; then + # pstatus green YES + #else + # pstatus red NO + #fi fi - #dd if=/dev/cpu/0/msr of=/dev/null bs=1 count=8 skip=73 2>/dev/null - #/bin/echo $? fi if [ "$insmod_msr" = 1 ]; then |